Choose the right part of the idiom to complete the sentences.

Choose the correct option.

I'm sure you'll ace the test! It's not [light years|wires crossed|rocket science].

My new smartphone is [same wavelength|light years|wires crossed] ahead of my previous one.

I tried to talk to John but he wouldn't listen to me! We got our [rocket science|same wavelength|wires crossed].

I enjoy being with people who are on the [wires crossed|rocket science|same wavelength] with me.